body {
    min-width: 320px;
    max-width: 540px;
    margin: 0 auto;
    background: white;
    font-size: 14px;
    line-height: 1.5;
    font-family: -apple-system, Helvetica, sans-serif;
}

* {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

input {
    -webkit-appearance: none;
}

img, a {
    -webkit-touch-callout: none;
}

.top-tips {
    width: 100%;
    height: 45px;
    line-height: 45px;
    background: #333333;
    text-align: center;
    color: white;
}

.top-tips > div {
    float: left;
}

.top-tips .close {
    width: 8%;
}
.top-tips .close img {
    width: 10px;
}

.top-tips .logo {
    width: 10%;
}
.top-tips .logo img {
    width: 30px;
    vertical-align: middle;
}

.top-tips .search {
    width: 57%;
}

.top-tips .open-app {
    width: 25%;
    background-color: #F63515;
}


